RKI Instruments Gas Tracer - Manual (Page 119)

Gas Tracer Operator’s Manual Leak Testing • 111
NOTE: Pressing and holding the DISPLAY (ADJ) button will change
the full scale setting for Leak Check Mode. Once you have
made your buzzer selection, use the DISPLAY (ADJ) button to
display the desired full scale.
2. Release the button when NO ALARM in the upper left corner
appears or disappears.
Peak Hold Mode
Peak Hold Mode allows the user to view the peak methane reading
for the operating session while viewing the current methane reading.
To enter Peak Hold Mode:
1. Turn the Gas Tracer on as described in “Turning On the Gas Tracer,
Leak Check Mode” on page 101. Select the desired display range.
In the example below, 500 ppm has been selected.
2. Press and hold the RESET SILENCE button until the Peak Hold
Mode screen displays.
The current methane reading is displayed on the first line. The
“PH” shown on the second line indicates that the GX-2012 is in
Peak Hold Mode. The peak methane reading is displayed on the
third line. The full scale value is displayed on the fourth line.
3. The peak reading displayed while in Leak Check Mode will appear
in the Peak Hold Mode screen.
4. If the highest reading recorded is higher than the full scale value,
the full scale value will be displayed. If the full scale value is
changed to something higher, the real value for the peak will be
displayed. Even if CO DISP in Maintenance Mode is turned on,
the CO channel will not be displayed in Peak Hold Mode.
5. To reset the peak, press and hold the RESET SILENCE button until
you hear a beep, then release it.
6. To exit Peak Hold Mode and return to Leak Check Mode, press and
hold the RESET SILENCE button until until you hear the GX-2012’s
400
PH
500
500
ppm
ppm
ppm
LEAK CK MODE
CH
4
F.S.
PEAK